Uninsured Motorist Bodily Injury Coverage: What It Is and Do You Need It?

About 14% of U.S. drivers carry no liability car insurance at all, according to the Insurance Research Council. When an uninsured driver hits you, your medical bills become your responsibility unless you carry uninsured motorist coverage. Uninsured motorist bodily injury coverage (UMBI) pays for your medical bills, lost wages, rehabilitation costs, and pain and suffering in most states when an at-fault uninsured driver causes your accident. UMBI covers you and your passengers. It does not cover vehicle damage, which falls under a separate coverage type entirely.

UMBI covers the full range of bodily harm costs you and your passengers sustain when an uninsured at-fault driver causes your accident. Covered expenses include immediate medical treatment, ongoing rehabilitation, income loss, and in most states, pain and suffering. Coverage applies only to bodily injury sustained in the accident; it does not extend to vehicle repair or replacement.

UMBI applies only to bodily injury. It does not pay for property damage, and several other exclusions apply depending on your state. Uninsured motorist property damage (UMPD) coverage handles vehicle repair and replacement when an uninsured driver damages your car.

Coverage applies only if UMBI is included in your policy. State minimums and lender requirements vary.

UMBI is worth adding for most drivers, particularly those in states where uninsured rates exceed 15% or those without thorough health and disability coverage. Industry estimates suggest the average emergency room visit after a crash costs between $3,500 and $8,000, and UMBI typically adds an estimated $40 to $80 per year to a full coverage policy. In Florida, where the bodily injury state minimum is $10,000 per person and $20,000 per accident, a moderate crash involving two occupants, emergency transport, ER treatment, and a week of lost wages can routinely exceed $28,000 per person based on reported injury cost data. The gap between Florida's state minimum and actual injury costs is $18,000 or more per person. Without UMBI, that gap falls entirely on the injured driver when the at-fault party carries only state minimum coverage. Drivers with prior gaps in coverage also benefit, as car insurance for high-risk drivers often comes with higher uninsured-driver exposure. Review how much car insurance you need before selecting your UMBI limit.

UMBI may be less important for drivers with thorough employer health plans and long-term disability coverage who live in states with reported uninsured rates below 8%, such as Maine, New York, and Massachusetts, based on available IRC and NAIC data. In those situations, existing health and disability policies may cover much of what UMBI would otherwise pay. Those policies still won't replace lost wages in every case or cover passengers in your vehicle, so UMBI retains value even for well-insured drivers.

Both UMBI and uninsured motorist property damage (UMPD) coverage are triggered by the same event: an at-fault driver who carries no liability insurance collides with your vehicle. Both coverages respond only when the other driver is uninsured and at fault, and both are optional in many states. Each covers an entirely different category of loss.

The single most important distinction is what each coverage pays for. UMBI pays for your body; UMPD pays for your car. Consider this scenario: a 2022 Toyota Camry is rear-ended at a red light by an uninsured driver. The Camry driver sustains a herniated disc requiring surgery ($42,000 in medical costs) and misses six weeks of work ($9,600 in lost wages). The car sustains $6,400 in damage. UMBI covers the $51,600 in bodily costs. UMPD covers the $6,400 vehicle repair. Without either coverage, both figures come entirely out of pocket. Both coverages belong in a complete policy. See types of car insurance for where each fits within your protection.